On Mon, Jul 20, 2020, at 7:55 PM, Praveen Kumar wrote:
>
> Confirming some details re: thread safety ( I noticed older posts in this
> group on the topic... but they're quite old ) --
>
> I'm using version 1.2.7, and can't upgrade. I understand that Connection and
> Transaction are not
Confirming some details re: thread safety ( I noticed older posts in this
group on the topic... but they're quite old ) --
I'm using version 1.2.7, and can't upgrade. I understand that Connection
and Transaction are not threadsafe.
Are Engine and QueuePool ( the default pool ) threadsafe ?
here is your patch:
diff --git a/lib/sqlalchemy/orm/strategies.py b/lib/sqlalchemy/orm/strategies.py
index 3e7372fac7..ec3c9790f2 100644
--- a/lib/sqlalchemy/orm/strategies.py
+++ b/lib/sqlalchemy/orm/strategies.py
@@ -595,6 +595,9 @@ class LazyLoader(AbstractRelationshipLoader,
that was actually quite easy!
https://github.com/sqlalchemy/sqlalchemy/issues/4507
On Tue, Feb 19, 2019 at 7:18 PM Mike Bayer wrote:
>
> this will be moving to a github issue, and also I will attempt to
> create a proof of concept.
>
> Everything that happens inside of
this will be moving to a github issue, and also I will attempt to
create a proof of concept.
Everything that happens inside of _memoized_attr__simple_lazy_clause
involves creating copies of things and the state of the loader
strategy is not modified until it's done. There is one "unique=False"
Hi,
I'm maintaining a multi-threaded application which uses sqlalchemy to
access mysql db. Some time ago we decided to upgrade
sqlalchemy version from 1.1.18 to 1.2.14 and since then we started
observing strange problems, the application started
throwing IntegrityError in code like that:
For clarity I made a table below in my notes out of reading the
documentation and generalize the points:
Engine: no worries, Engine object is always thread safe.
Session: Session objects are tricky, they can be quite dangerous to use in
a multi-threading context if one is not careful. Forget
I am using the Falcon web server and SqlAlchemy core.
I have read warnings about it not being thread safe.
I'm not sure what the implications are of this. Will there be a problem or
can I code around it somehow?
I'm trying to avoid the ORM for now - at least until I have some grasp of
what
Duke Dougal dukedou...@gmail.com wrote:
I am using the Falcon web server and SqlAlchemy core.
I have read warnings about it not being thread safe.
I'm not sure what the implications are of this. Will there be a problem or
can I code around it somehow?
I'm trying to avoid the ORM
